Rails Form select：预选一个选项

Question

我有这个 Rails 代码：

 <% status_a = [ ["DRAFT", "DRAFT"], ["OPEN", "OPEN"], ["CLOSE", "CLOSE"] ] %>
 <%= form_for(:dash_action, url: brokers_dashboard_path ) do |f| %>
      <%= f.select(:select_status, options_for_select(status_a), {}, selected:'OPEN' %>
 <% end %>

当它运行时，它会生成以下 HTML 代码：

<select selected="selected" name="dash_action[select_status]" id="dash_action_select_status">
<option value="DRAFT">DRAFT</option>
<option value="OPEN">OPEN</option>
<option value="CLOSE">CLOSE</option>
...

但我期望的是： selected="OPEN" 而不是 "selected"

为什么选择方法没有做我想要的？

Answer 1

试试下面的代码sn-p，默认值应该是options_for_select的参数

f.select :select_status, options_for_select(status_a, 'OPEN')